baber/WOPTO huggingface dataset:
Patent GB-1437386-A (GB)
Title: Central heating plant
IPC: F24D3/10
Filed: 1973-10-23
Abstract: 1437386 Central heating systems R H D CARLSON and K G MALMSTROM 23 Oct 1973 49378/73 Heading F4U A central heating system comprises a safety pipe 8 connecting a heating circuit 3 to an expansion tank 10 via a branch pipe 9, having a pressure-dependent flow regulator 11, and a pipe 12 having a continuously running pump 13 which has an output pressure greater than the opening-pressure of the flow regulator 11 whereby water is circulated continuously from the tank 10 and through the pipes 12 and 9. On expansion of water in the circuit 3, the pressure rises in the pipe 8 and the flow through the regulator 11 increases and the water level in the expansion tank 10 rises. The tank 10 includes a flexible diaphragm 16 and may be coupled to a second expansion tank. The circuit 3 may be the secondary side of a district heating system and may include a hot water heater 5, radiators 6 or a warm air heating unit 7.
Patent GB-1163364-A (GB)
Title: Falling Film Evaporator
Inventor: ROSENBLAD AXEL EVERHARD
IPC: B01D1/22
Filed: 1967-11-03
Abstract: 1,163,364. Evaporators, falling film type. A. E. ROSENBLAD. 3 Nov., 1967, No. 50124/67. Heading B1B. Liquid is evaporated from films of the liquid flowing down the outer surfaces of vertical, parallel plates 12 which form opposite walls of a plurality of hollow heating elements 11 spaced form a casing 14 so that the vapours formed in the channels between adjacent heating elements flow out of the channels at both vertical edges of the elements and enter the spaces 18 between the elements and the casing. The vapours are withdrawn from the casing through two conduits 32 which are at a position below the upper edges of the heating elements. The evaporator shown is of the vapour-compression type in which the vapour is drawn through conduits 32 by compressor 34, and the compressed vapour is introduced through manifolds 22 and pipes 25 into the interior of the hollow heating elements, wherein the vapour condenses. The condensate flows out of the hollow elements through pipes 29 into tank 39 from which gases are discharged via pipe 44. The liquid to be evaporated is supplied to the upper edges 59 of heating elements through pipe 52 and spray nozzles 57. Concentrated liquid, remaining after the evaporation, is withdrawn from the bottom of casing 14 by pump 51. Some of the concentrate may be recirculated to the evaporator through pipe 52, the remainder being withdrawn from the system through pipe 46. The compressor 34 may be omitted, and the evaporator joined by pipe 32 to a series of similar units connected for multipleeffect operation.
Patent GB-1180540-A (GB)
Title: Test Circuit for Reactor Safety Control System
IPC: G21C7/36
Filed: 1968-10-22
Abstract: 1,180,540. Controlling reactors. COMBUSTION ENG. Inc. 22 Oct., 1968 [23 Oct., 1967], No. 50144/68. Heading G6C. In a nuclear reactor safety control system, a test circuit is provided which eliminates the need to remove the control system from service during test. In the control system the clutches holding the plant control rods are released, so as to shut down the reactor, when the variables monitored, such as primary coolant flow, water level, load and neutron flux vary from acceptable values. The control system test circuit is provided with an independent power supply and a manually actuated test switch. To test a section of the control circuit, it is first rendered inoperative to prevent tripping the reactor and is then tested by the manual operation of switches which effect energization of indicating lights if the circuit is in order. When the circuit sections have been tested separately, they are next tested in conjunction, to check the clutch release circuits, the reactor trip being prevented, and a further set of indicating lights being used.
Patent GB-1190139-A (GB)
Title: Drawer-Type Ash-Trays, Particularly for Motor Vehicles
IPC: B60N3/08
Filed: 1968-10-22
Abstract: 1,190,139. Smokers' ash-trays. GEBRUDER HAPPICH G.m.b.H. 22 Oct., 1968 [13 Feb., 1968], No. 50162/68. Heading A2M. A drawer-type ash-tray for motor vehicles adapted to be released from its mounting if, e.g. in an accident, it is subjected in its pulled out position to an impact or impact-like load, comprises an ash receptacle 2 slidably mounted in a U-shaped guide member 1 having legs 1a, 1b being provided with a guide groove 4 or a guide element (3) extending along the direction of the sliding motion of the ash receptacle 2. As shown, guide elements 3 are mounted in the side walls 2a, 2b of the receptacle 2 and are slidable in the guide grooves 4, the elements 3 taking the form of hemispherical cams. In another embodiment (Fig. 2 not shown), the elements 3 are mounted on the legs 1a, 1b and the grooves 4 are formed in the side wall 2a, 2b.
Patent GB-1279128-A (GB)
Title: Improvements in or relating to line repeater amplifiers having transistorised electrical power supply circuits
IPC: H04B15/00
Filed: 1969-10-14
Abstract: 1279128 D.C. smoothing circuits SIEMENS AG 14 Oct 1969 [15 Oct 1968] 50289/69 Heading H2F [Also in Division H4]  In a smoothing network S (Fig. 1) for a D.C. power supply from terminals a, b to an amplifier V in a telecommunications line repeater, any A.C. through a resistor R1 produces an A.C. voltage between the base and emitter of a control transistor T1. This A.C. voltage appears amplified and with inverted phase at the base of a transistor T2 and controls T2 so that the alternating current component in R1 remains small. Therefore the magnitude of any alternating current i v  at the collector of T 2  is very small. The collector current of T1 is supplied via R2, which may be a field effect diode, from terminal a. The resistance R1 may be variable and may comprise a resistor network including a negative temperature coefficient resistor to ensure that the voltage U D  across the smoothing network S is independent of temperature. A Zener diode Z ensures constant voltage U B  between terminals a and b. Thus temperature dependent changes in the D.C. supply current I v  have no effect upon the smoothing since if the direct voltage U B , U D  both remain constant then the voltage U v  to the amplifier is constant. Capacitor C ensures that excessive A.C. voltage does not appear across a, b. Protection against lighting may be provided such as overvoltage limiting resistors and the Zener Z may be of special high power type.
Patent GB-982064-A (GB)
Title: Vehicle jack
IPC: B66F3/35
Filed: 1963-12-20
Abstract: 982,064. Pneumatic jacks. O. BEISSBARTH. Dec. 20, 1963, No. 50321/63. Heading B8J. A vehicle jack operated by compressed air supply includes telescopic tubes 4-6 which prevent lateral displacement of an upper plate 3 with respect to a base plate 1. A double convolute bag 2 is secured to the plates 1, 3 and is supplied with air through a valve 9 which also limits the pressure at which air is admitted to the bag. An additional valve 11 forms an outlet and excess pressure valve. The extension of the jack is limited by bolts 7, 8. The head of the jack includes a resilient pad 12 and a similar pad may be secured under the base 1.
Patent GB-1040067-A (GB)
Title: Improvements in or relating to cutting tools
IPC: B23B27/16
Filed: 1964-12-10
Abstract: 1,040,067. Cutting tools. DE VLIEG MACHINE CO. Dec. 10, 1964 [March 30, 1964], No, 50360/64. Heading B3B. A cutting tool of the removable insert type, Figs. 1 and 3 (not shown), comprises an insert 8 and a supporting shank 54. The shank has an open-sided recess to accommodate the insert, the side faces 24 and 26 of which co-operate with the converging shoulders 12 and 14 respectively of the recess. The insert has a tapered central hole 28 through which passes a wedging member, in the form of a pin 30, and which screws into the shank. The axis of the pin 30 is inclined with respect to the axis of the tapered hole 28 in the insert and lies in a vertical plane passage through the point of convergence of the shoulders 12 and 14, so that by screwing the pin into the shank the head 32, a wedging engagement with one side of the hole is effected to press the insert into engagement with the shoulders 12 and 14 and with the seat 10 of the recess.
Patent GB-1204018-A (GB)
Title: Improvements in or relating to smoking articles and filter elements therefor
Inventor: WATERBURY NELSON JARVIS
IPC: A24D3/06
Filed: 1968-10-24
Abstract: 1,204,018. Tobacco smoke filters; cigarettes. F. B. HASKETT. 24 Oct., 1968, No. 50565/68. Addition to 1,151,660. Heading A2C. That aspect of the invention of the parent Specification in which vitamin A- containing capsules are included in a tobaccosmoke filter element is modified by the use of capsules: (1) that are rupturable by the heat of the smoke; (2) that are rupturable by the suction produced when the smoker draws on the cigarette; (3) that contain vitimin A in the palmitate form; and (4) that contain vitamin A in the acetate form. In further modifications of the invention of the parent specification: (5) a filter cigarette includes rupturable micro-capsules of vitamin A placed between its tobacco charge and its outer wrapper; and (6) the tobacco charge of a smoking article, e.g. a cigarette, includes capsules of vitamin A in the acetate or palmitate forms. Suitable encapsulating materials include gelatin, solidified egg white, thermoplastic and thermosetting synthetic resins that melt or disintegrate below 1100‹F. In addition to vitamin A the capsules may also include other vitamins such as C and E and/or flavouring agents such as menthol pectin and chlorophyll.
Patent GB-1056508-A (GB)
Title: Process for separating straight-chain organic compounds from a mixture containing them
IPC: C07C9/14
Filed: 1965-11-29
Abstract: A process for separating straight-chain organic compounds (defined as including compounds having short side-chains provided that there is a long uninterrupted straight chain present) from a mixture containing them, comprises contacting the mixture with an unsaturated alcoholic solution of urea which causes adducts to be formed in a crystallization zone, heat being extracted from the solution in this zone, the contact being maintained until the adducts formed grow to an average of at least 20 microns in each dimension, separating an adduct-containing stream from a stream containing non-adducted mixture components, decomposing the adducts and recovering the straight-chain organic compounds obtained thereby.  The preferred alcohol solvent is methanol.  The adduct-containing methanol stream may be washed with hexane to remove non-straight-chain compounds dissolved therein. The process may be applied to kerosene.
Patent GB-1134438-A (GB)
Title: An analogue converter and application thereof to regulation
Inventor: BALIGUET MICHEL PAUL
IPC: H02P23/16
Filed: 1966-11-11
Abstract: 1,134,438. Frequency discriminators. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. 11 Nov., 1966 [12 Nov., 1965], No. 50739/66. Heading H3A. A pair of circuits as shown in Fig. 1 produce output square waves in anti-phase and of amplitude proportional to the period of an input signal (i.e. inversely proportional to the frequency), the two square waves being combined to provide a D.C. output voltage. For the first quarter-cycle of an input signal (0 to T/2, Fig. 2, not shown), transistor 6 conducts and discharges capacitor 1; in the next quarter-cycle (T/2 to T) the capacitor 1 charges through diode 4 from a constant current source, which may be a high resistance, to a potential proportional to the charging time; in the next half-cycle transistor 5 conducts to prevent further charging of the capacitor 1, and transistor 7 conducts to connect the constant potential on capacitor 1 to an output terminal 8. The switching signals applied to terminals 9-11 are derived from an input square-wave signal X (Figs. 7 and 8, not shown), and its inverse #X and from derived signals Y and #Y of half the frequency by means of an AND circuit (17, Fig. 7) and an OR circuit (19). The signals supplied are Y + X Y to terminals 9, #X#Y to terminal 10, and Y to terminal 11, and the corresponding anti-phase signals to the anti-phase unit corresponding to Fig. 1.
Patent GB-1118588-A (GB)
Title: Machines for processing sheet or strip metallic materials
Inventor: BUTLER ROGER DAVID
IPC: F16C13/00
Filed: 1965-12-01
Abstract: 1,118,588. Rolling; improving physical properties. PRESSED STEEL FISHER Ltd. 4 Jan., 1967 [1 Dec., 1965], No. 50913/65. Headings B3M and B3V. A machine for suppressing the discontinuous yield point in sheet or strip metal comprises a pair of rolls between which the metal passes, one roll being in the form of a hollow drum 12 divided by radial seals 16, 17 into two compartments, one of which is filled with fluid under pressure. The drum is supported by sealed bearings 14, 15 on a fixed shaft 13, and the two rolls are urged together by an applied pressure a. Fluid is introduced into the compartment 20 under an adjustable pressure in order to control the degree of resilience of the roll gap. The drum may be of hardened rubber, synthetic plastics material, soft metal, or wood, and the seals may be of hard rubber or synthetic plastics material.
Patent GB-1386138-A (GB)
Title: Ring trip circuit
IPC: H04M19/02
Filed: 1972-11-06
Abstract: 1386138 Automatic exchange systems INTERNATIONAL STANDARD ELECTRIC CORP 6 Nov 1972 [17 Nov 1971] 51030/72 Heading H4K A ring trip circuit comprises a resistor R1 connected in series with the subscribers loop and a photo-emissive device Dp connected in parallel with the resistor such that when the subscribers line is looped, current flowing through the device Dp causes a photo-transistor Tp to switch on to operate a relay O (Fig. 2), thereby tripping the ringing circuit. In one embodiment (Fig. 2) a photo-emissive diode Dp is connected across resistor R1 via a filter F and a protection circuit P comprising parallel opposed Zener diodes, whilst in a further arrangement the photo-diode is connected across resistor R1 via a transistor T4 which is switched on via a filter circuit F and transistor T3 when a D.C. loop current flows. In the latter arrangement one half cycle of the ringing current as well as part of the D.C. loop current flow through the photo-diode Dp thereby causing it to be more strongly illuminated.
Patent GB-1157197-A (GB)
Title: Device for protecting the eye against laser radiation
IPC: A61F9/02
Filed: 1967-11-10
Abstract: 1,157,197. Telescopes. ELTRO G.m.b.H. & CO. GESELLSCHAFT FœR STRAHLUNGSTECHNIK. Nov.10, 1967 [Dec. 6, 1966], No.51210/67. Heading G2J. [Also in Division H4] In an image display system in which incident laser radiation e.g. of infrared frequency, is focused by a lens 5 on to the photo-cathode of image converter tube 1 and the resulting electron beam is focused via electrostatic aperture stop 3 on to the luminescent screen 4 which is viewed via lens 6, a circular mash 8 of diameter D=df/ (a-f) is arranged with its centre on the optical axis of the system a distance b = af/(a-f) from lens 5, where # is the focal length of lens 5, a is the distance between the aperture stop 3 and lens 5, and d is the aperture diameter of the aperture stop. Mask 8 represents the image of stop 3 formed by lens 5. It is stated that mask 8 protects the eye against laser radiation. Two systems may be arranged side by side for binocular viewing.
Patent GB-1275058-A (GB)
Title: Improvements in perambulators or pushchairs
Inventor: SAUNDERS HERMAN
IPC: B62B9/26
Filed: 1968-12-31
Abstract: 1275058 Luggage carriers for perambulators CLOWES BAG CO Ltd 26 March 1970 [31 Dec 1968] 51706/68 Heading B7J In a tray unit mounted on the axles of a perambulator, a tray A slides on a sub-frame B by means of angle iron runners a which run along longitudinally extending channel members b connected together by transverse brackets b<SP>5</SP>, b<SP>3</SP> engaged with the axles c, the bracket b<SP>5</SP> being slidably adjustable to accommodate axles of different spacings, and being tensioned into engagement with the appropriate axle by a spring b<SP>6</SP>. The bracket b<SP>3</SP> has a rib b<SP>4</SP> which has two alternative positions for engagement with the axle, to allow for perambulators having axles of different heights from the ground. The runners a have U-shaped catches a<SP>2</SP> pivoted to their ends, the catches being engageable in notches b<SP>8</SP>, b<SP>9</SP> provided in the members b to enable the tray to be either fixed in position under the perambulator or withdrawn by sliding.
Patent GB-1499917-A (GB)
Title: Electric dry shaver with adjustable long hair trimmer
IPC: B26B19/06
Filed: 1975-12-18
Abstract: 1499917 Dry shavers SUNBEAM CORP 18 Dec 1975 [23 Dec 1974] 51872/75 Heading  B4B [Also in Division H2] An electric hair trimmer 35 comprises a housing 26, two sets of teeth 36, 37 arranged for relative shearing movement, a guard 50, andmeans 51, 52 for supporting the guard for movement normal to the plane of shear of the sets of teeth, the guard being receivable in a recess in the housing adjacent the sets of teeth. The housing 26 constitutes the head 12 of a dry shaver and mounts a foil 13 for co-operation with a pair of oscillatable cutters 14 driven by an electric motor 22 via a crank 42 and levers 43, 44. The teeth 36 of the trimmer are formed on a plate fixed on the housing 26 and the teeth 37 formed on a plate which is reciprocated by a lever 46 engaging with a fork 45 on the lever 44. The guard 50 is provided with teeth 50a and is mounted on frame member 51, 52 which is slidable in grooves (26c) Fig. 9 (not shown) in the housing 26; projections 52a on the frame 51, 52 locate in grooves (53) in the shaver housing 16, 17 to also guide the frame. The guard is raised and lowered by means of a crank-pin 54c on a rotatable knob 54 the pin engaging in a slot 52b, Fig. 3, one wall of which being defined by a resilient member 52c. The knob is formed with notches 54d for engagement with a resilient detent member (60). The various positions of the guard shown in Fig. 4 are indicated by indicia 57b on the shaver housing.
Patent GB-1524109-A (GB)
Title: System for information transfer between peripheral circuits and a central unit
IPC: H04Q3/545
Filed: 1976-12-14
Abstract: 1524109 Data processing system INTERNATIONAL STANDARD ELECTRIC CORP 14 Dec 1976 [19 Dec 1975] 52109/76 Heading G4A [Also in Division H4] A signal transfer system between a central unit and a number of peripheral circuits includes a store for each circuit which stores a group of signal samples for a signalling event and a speed indication, a control means including a clock for controlling the transfer of samples between a storing device and a circuit and access means for asynchrous transfer of groups of samples between the storing devices and the central unit, the speed indication being used by the control means for transfer of individual samples from the storing device to the respective peripheral circuit at the appropriate speed. Fig. 2 shows the transfer from the circuits, e.g. line or junction circuits CC 1  to CC n  to a central unit UC (not shown) and Fig. 5 from the central unit to the circuits. Each circuit CC is associated with a storage cell Cr in a memory MER. A scanner EXP scans the circuits and supplies signal samples to a reception logic circuit LER which also receives the stored information in the respective cell Cr; circuit LER under the control of a clock CKR updates the information in the store MER for each circuit in turn, by storing all the samples successively obtained from a circuit. The number of samples may be fixed or it may depend on the nature of the signal to be monitored but the speed is controlled by the stored indication. When the sampling for a particular circuit has finished, the group of samples is transferred to the central unit UC through an access circuit LAR, asynchronously. The central unit UC may access the circuits directly through the scanner EXP, via connections ecr<SP>1</SP>, nc, ic<SP>1</SP>. Transfer of information from the central unit UC to the circuits CC 1  to CCn is analogous; information from the central unit UC is transferred in groups, through an access circuit LAE to a store MEE and from the store, one sample at a time, through a circuit LEE and a distributor DTR to the circuits, CC 1  to CC n . Again, the central unit UC may access the circuits directly through the distributor DTR by connections aded and sed.
Patent GB-522847-A (GB)
IPC: C09F5/06
Abstract: 522,847. Drying oils. NAAMLOOZE VENNOOTSCHAP INDUSTRIEELE MAATSCHAPPIJ VOORHEEN NOURY & VAN DER LANDE. Dec. 19, 1938, No. 36963. Convention date, Dec. 18, 1937. [Class 91] Drying oils are made from castor oil by catalytically splitting off water from the fatty acid radicle at a temperature above 150‹C. in the presence of from 0.01 to 0.001 per cent. of a catalyst consisting of one or more of the sulpho compounds of the lower aliphatic hydrocarbons. The oil may be re-esterified by a quantity of polyhydric alcohol previously determined by test and chosen so as to give the final product a selected acid number. Specified catalysts are methionic acid, ethyl sulphuric acid, methane trisulphonic acid and ethionic acid. Specifications 317,391, [Class 91], 508,516, and German Specification 632,478 are referred to.
Patent GB-1481716-A (GB)
Title: Electrode suspension system for colour selection electrode of a colour cathode ray tube
IPC: H01J29/02
Filed: 1974-12-04
Abstract: 1481716 Colour television tubes ZENITH RADIO CORP 4 Dec 1974 [12 Dec 1973] 52455/74 Heading H1D The colour selection electrode 11 of a phosphor dot colour television tube is mounted on support studs 34, secured one at each corner of the flangeless baseplate 14, by means of springs 46 secured to respective brackets 50 which externally surround and embrace the corners of the electrode. The springs 46, which carry lugs 54 to engage in recesses 52 in the support studs, are prestressed, to permit disengagement from the studs with the minimum of travel, and to preclude excessive vibration. The bracket 50 is of bimetal construction, the two parts being edge-bonded, to produce a compensating movement of the electrode relative to the screen with change of temperature. The electrode channel 22 and skirt 24 shield the screen from overscanning electrons.
Patent GB-1472549-A (GB)
Title: Method of manufacture of metallic powder
IPC: B05B9/00
Filed: 1974-12-04
Abstract: 1472549 Granulating metals L'AIR LIQUIDE SOC ANON POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 4 Dec 1974 [4 Dec 1973] 52518/74 Heading C7X In the granulating of a molten metal, e.g. steel, by a jet of gas, e.g. argon or nitrogen, the gas is projected at the speed of sound. At point of impact with the metal, the speed is less than that of sound.